Figure 10
Analysis of director field in I + Ch phase. (a–f) represent the director field with double wall defects, and (i–n) represent the field with a single wall. (e), (f), (m) and (n) show the fields at the plane including the central axis of the droplet. (a), (b), (i) and (j) show the director fields at the plane indicated by the orange broken line (I) in (e) and (m), and (c), (d), (k) and (l) at the plane of the purple broken line (II). (a), (c), and (e) are depicted based on Eqs. (3), (S14), (S15a) and (S15b) in Supplementary Note 9, and (i), (k) and (m) are based on Eqs. (3), (S14), (S17a) and (S17b). In the schematics of (b), (d), (f), (j), (l) and (n), the colour gradation of the ellipsoids from red to blue represents the director tilt from up to down against the plane. The green broken lines/circles in the schematics indicate the position of the wall defects. Actually, the walls assumed in these director fields are considered to transform into the loop defects. (g) and (o) are the light transmission intensity profiles calculated by the Jones matrix method; (g) is based on equations (3), (S14), (S15a) and (S15b), and (o) is on equations (3), (S14), (S17a) and (S17b). P and A in (g) and (o) indicate polariser and analyser, respectively. (h) and (o) are POM images obtained just after the loop defects are formed; double and single loops exist in (h) and (p), respectively.
